How to creat .csv file in matlab?

I have nine year wind speed data in excel. The format of this data is like Day,Hour,WindSpeed for nine year. For example: 1,1,5.1 1,2,5.1 . . 1,24,5.7 2,1,6.2 2,2,7.7 . . 2,24,6.7 . . . 3287,1,9.8 3287,2,11.3 . . 3287,24,4.6 Could anybody please suggest me help me for creat csv file in matlab for this type of data?

[Jan]

The meaning of the data does not matter. The data could be a random matrix also and the solution would be the same.

Answer 1

[Jan]

data = rand(100, 3);  % Test data
csvwrite('File.csv', data);

[Tusharkumar Vaghasiya]

Thank you very much sir Finally I got output

Answer 2

[ES]

read data from excel using xlsread and write using csvwrite.

doc xlsread
doc csvwrite

[Tusharkumar Vaghasiya]

Thank you very much I have learnt much more think from your answer